My free throw release used to be lower than my in game shot. I've been trying for a couple days to bring it up to keep it consistent with my normal shot, but the percentage drops greatly. Mostly, the ball bounces off the back of the rim or just has bad touch. When I shoot it lower, I can go 80-90%. Should I take the time to change it?

I understand it's best that I just get the points, but I have the whole summer to change my shot if I need to. Should I take the time to? I'm trying to become a good overall shooter and people I've talked to said one consistent form for every shot you take in a game is the best way to do so.

Also does anyone know exactly how long a referee allows you to prepare for your free throw?

The official alloted time is 5 seconds. Although most referees will let you get away with more if it doesn't go into extremes. I only blow the whistle when a guy is purposefully being annoying, the guy pumpfaking to draw a lane violation comes to mind.